1718520220141 has 32 divisors (see below), whose sum is σ = 1856784384000. Its totient is φ = 1585408283712.

The previous prime is 1718520220049. The next prime is 1718520220163. The reversal of 1718520220141 is 1410220258171.

It is a de Polignac number, because none of the positive numbers 2^k-1718520220141 is a prime.

It is a super-2 number, since 2×1718520220141² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1718520220097 and 1718520220106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1718520220541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145545060 + ... + 145556866.

It is an arithmetic number, because the mean of its divisors is an integer number (58024512000).

Almost surely, 2^{1718520220141} is an apocalyptic number.

It is an amenable number.

1718520220141 is a deficient number, since it is larger than the sum of its proper divisors (138264163859).

1718520220141 is a wasteful number, since it uses less digits than its factorization.

1718520220141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12681.

The product of its (nonzero) digits is 8960, while the sum is 34.

The spelling of 1718520220141 in words is "one trillion, seven hundred eighteen billion, five hundred twenty million, two hundred twenty thousand, one hundred forty-one".